Xingyuan Li Weon-Geun Oh Jiarong Hong Wen Gao Recognizing components of handwritten characters by attributed relational graphs with stable features. 616-620 1997 conf/icdar/1997 ICDAR http://doi.ieeecomputersociety.org/10.1109/ICDAR.1997.620577 db/conf/icdar/icdar1997.html#LiOHG97